AHMAD RIFA’I; LUTHFI, A. Analysis of the Effectiveness of User Manual Book in Supporting Application Usage at PT KPI RU 5 - Balikpapan. Journal of Software Engineering Ampera, [S. l.], v. 5, n. 1, p. 1–21, 2025. DOI: 10.51519/journalsea.v5i1.565. Disponível em: https://journal-computing.org/index.php/journal-sea/article/view/565. Acesso em: 18 apr. 2026.